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Finding the Fourth Proportional to 93,051.32, 128,440.04 and 52,791.84

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Solution

The fourth proportional to 93,051.32, 128,440.04 and 52,791.84 is: 72,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,051.32 : 128,440.04 = 52,791.84 : x
  2. Step 2: Convert to fraction form
    93,051.32/128,440.04 = 52,791.84/x
  3. Step 3: Cross multiply
    93,051.32x = 128,440.04 × 52,791.84
  4. Step 4: Simplify right side
    93,051.32x = 6,780,586,041.27
  5. Step 5: Solve for x
    x = 6,780,586,041.27/93,051.32
  6. Step 6: Final answer
    x = 72,869.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.